Floor-covering.



C. D. ARMSTRONG.- I ,FLOOR COVERING. l APRucATipN FILED JuNE,24,1913.

` vWIATNESSES fw @wy/M -1 f: ferr; if

CHARLES D. ARMSTRONG, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR T0 ARMSTRONG CORK COMPANY, 0F PITTSBURGH, PENN vamn.

' Speeication of Letters Patent.

SYLVANIA, A. CORPORATION 0F '.PENNSYL- FLOOR-COVERING.

Patented Apr. 1915.

Application led .Tune 24, 1913. Serial No. 775,518.

To all whom t may concern Be it known that I, CHARLES D. ARM- STRONG, a citizen of the United States, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Floor-Covering, of which the following is a full, clear, and eXact description, reference being had to the accompanying drawings, forming part of this specification, in which- Y Figure l is a plan view partially broken away' showing a portion of my improvedfloor'covering; and Fig. 2 is vertical crosssection of the same in place.

In the applying of linoleum tileupon a rigid base such as concrete, it has Abeen found that there is not sufficient resilience to form a' proper surface for walking, the linoleum tiles not giving a suiicient yielding quality. -These tiles if made soft will become injured or destroyed within a shortl time, and if made harder they do not suciently relieve the rigidity of the cement or.

other rigidflooring. I have overcome this objection by interposing between the linocork carpet, Which is softer than linoleum, or of baked sheet cork. This cushion layer is secured to the cement or other rigid foun-v dation by a cement, either waterproof or non-waterproof, as desired. The linoleum tiles are then laid in the proper order and shape on the cushioning layer, and are secured thereto by any desirable cement whether waterproof or not.

In the drawings, 2 represents the foundation or flooring of 4rigid material such as cement; 3 the intermediate cushioning layer; and '4 the linoleum tiles. The linoleum tiles are relatively hard compared to the cushioning layer, although the cushion-4 ing layer preferably contains Vor is formed of cork, though it may be of felt or other cushioning material. The total thickness of thetwo coverings over the cement is preferalbly from one-half to three-fourths of an inc I do not`wish to conine myself to the method of formation of the covering herein on the Hoor before laying the tile, such member may be applied in other ways, as secur- A ing it to the tiles before laying them.

The advantages of my invention result from the useof the cushioning layer between the rigid base or door and the tiles which are secured in place in the desired pattern. I am thus enabled to use linoleum tiles of a hard nature which will stand hard usage while obtaining the cushioning action and resilience which the tiles would not give.

I c'laim:- c

l. The combination with a lrigid floor or base, of Ya yielding elasticioor covering, comprising a plurality of pieces or `blocks of cork composition secured to the rigid floor, and linoleum tiles secured toand covingharder than the cushion-ing layer but adapted to yield under pressure, substantially as described. f

3. As a new article of manufacture, a composite block for floor covering, comprising a block linoleum wearing portion and a resilient cork composition backing member secured thereto, substantially as described.

In testimony whereof, I have hereunto set my hand.

CHARLES D. ARMSTRONG. Witnesses B. P. SHANNON, l F. G. STEVENS. f 

